The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-145-3231, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Solid State Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-145-3231 |
| Primary Part Number | 2N4108 |
| Item Name | Semiconductor Device,thyristor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Solid State Inc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 50.0 MAXIMUM OFF-STATE VOLTAGE, RMS TOTAL |
| Maximum Operating Temp Per Measurement Point | 125.0 CELSIUS AMBIENT AIR DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-18 |
| Overall Diameter | 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 25.00 AMPERES MAXIMUM GATE TRIGGER CURRENT, DC |
| Specification/standard Data | 80131-RELEASE5277 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2N4108 | Solid State Inc (USA) |
| 2N4108 | Solid State Devices, Inc (USA) |
| 2N4108 | New Jersey Semi-Conductor Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| RELEASE5277 | 5/9 Secondary reference U.S. Government activity |
| 2N4108 | 5/9 Secondary reference Csr Industries Inc |
| 005970-1 | C/1 Advisory reference — outside the item-of-supply concept Ge Aviation Systems Llc Dba Ge Aviation Systems Llc |
| 2N4108 | 5/9 Secondary reference Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd |
| 2N4108 | C/1 Advisory reference — outside the item-of-supply concept Fairchild Semiconductor Corp Semiconductor Div Hq |
| 2N4108 | C/1 Advisory reference — outside the item-of-supply concept Micro Uspd Inc |
| 2N4108 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5961-01-145-3231 is a Semiconductor Device,thyristor, manufactured by Solid State Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-145-3231 has 3 manufacturer part numbers on file: 2N4108 (Solid State Inc), 2N4108 (Solid State Devices, Inc), 2N4108 (New Jersey Semi-Conductor Products, Inc.).
Key specifications for 2N4108: Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM OFF-STATE VOLTAGE, RMS TOTAL; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS AMBIENT AIR DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-18; Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.